A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 4140-00-561-9218
NSN 5960-01-604-1158
NSN 6105-00-832-9796
NSN 5895-01-147-5688
NSN 6645-00-503-1379
NSN 6220-01-288-0416
NSN 7035-00-104-7613
NSN 6650-00-205-6282
NSN 2925-01-285-7163
NSN 5950-01-054-6161
NSN 5855-00-548-4742
NSN 4140-01-211-6474